An automated carbon fiber tube winding production equipment

By designing sealing and protective components and quick-disassembly components, the problem of surface depressions in carbon fiber tubing caused by mandrel pores has been solved, achieving high-precision tubing surface finish and quick mandrel replacement, making it suitable for the production of aerospace and precision machinery sleeves.

CN224426585UActive Publication Date: 2026-06-30WEIHAI KUNPENG FISHING TACKLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI KUNPENG FISHING TACKLE CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing carbon fiber tube production equipment, during the separation process between the mandrel and the formed carbon fiber tube, air holes cause surface depressions and bulges, affecting the smoothness of high-precision tubes.

Method used

A sealing and protective assembly is used, which seals the vent hole on the mandrel with a sealing rod. The elastic force of the first spring makes the sealing rod tightly inserted into the vent hole, preventing the carbon fiber prepreg from contacting the vent hole. Combined with a quick-release assembly, the sealing rod can be quickly inserted and removed.

Benefits of technology

This ensures the surface smoothness of the inner wall of the tube, meeting the high precision requirements of aerospace conduits and precision mechanical sleeves, and also improves the efficiency of mandrel replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an automated carbon fiber tube winding production equipment, including a sealing and protection component. The sealing and protection component includes a movable plate, a vent pipe, a vent hole, a sealing rod, a crossbar, a first spring, and a pressure plate. The movable plate is movably connected to a receiving frame, and the vent pipe is fixedly connected to the movable plate. Ventilation holes are opened through both sides of the mandrel, and sealing rods are movably inserted into the vent holes. Adjacent sealing rods are fixedly connected by the crossbar, and opposite sealing rods are fixedly connected by the first spring. The pressure plate is fixedly connected to the front end of the crossbar. During the winding stage, the elasticity of the first spring ensures that the sealing rod is tightly inserted into the vent hole, preventing the carbon fiber prepreg from contacting the vent hole and forming "dents," "bulges," or "marks," thus ensuring the surface smoothness of the inner wall of the tube and meeting the high-precision requirements of applications such as aerospace conduits and precision mechanical sleeves.
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Description

Technical Field

[0001] This utility model relates to the field of carbon fiber tube production technology, specifically to an automated carbon fiber tube winding production equipment. Background Technology

[0002] Carbon fiber tube winding equipment is used to wind carbon fiber composite fabric onto a mandrel to form carbon fiber tubes. It mainly consists of a mandrel fixing and rotating system, a feeding and tension control system, a reciprocating motion system, a cutting and bonding system, and a heat curing system. The working principle is as follows: The mandrel is installed and fixed on the mandrel fixing and rotating system. The carbon fiber tow or prepreg is drawn from the feed tray by the feeding mechanism, passing through a guide and the tension control system to maintain a certain tension on the carbon fiber material. Then, the mandrel begins to rotate under the drive of the rotating system, while the feeding device reciprocates along the mandrel axis under the drive of the reciprocating motion system, winding the carbon fiber material onto the mandrel according to a preset winding angle and method. When the predetermined length or number of layers is reached, the cutting and bonding system automatically cuts the carbon fiber material and bonds it in place. Finally, the heat curing system heats and cures the wound tube. After curing, the tube is removed from the mandrel, completing the production of the carbon fiber tube.

[0003] In existing technologies, to accelerate the separation between the mandrel and the formed carbon fiber tube, air holes are usually opened on the mandrel, and then gas is introduced to form an air film. However, during the winding and curing process, the air holes on the mandrel surface cause the carbon fiber prepreg to not be in close contact with the mandrel surface, forming "depressions", "bulges" or "marks" at the corresponding air hole positions. After curing, the inner wall of the tube will have traces matching the air holes, which will damage the surface smoothness. This is a fatal defect for tubes with high precision requirements (such as aerospace conduits and precision mechanical sleeves). Therefore, a new structure is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide an automated carbon fiber tube winding production equipment to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to an automated carbon fiber tube winding production equipment, comprising:

[0006] A cable winding assembly, the cable winding assembly including a receiving frame and a mandrel, the receiving frame being movably connected to the mandrel on its side;

[0007] The sealing and protection assembly includes a movable plate, a vent pipe, a vent hole, a sealing rod, a crossbar, a first spring, and a pressure plate. The movable plate is movably connected to the receiving frame, and the vent pipe is fixedly connected to the movable plate. Ventilation holes are opened through both sides of the mandrel, and sealing rods are movably inserted into the vent holes. Adjacent sealing rods are fixedly connected by a crossbar, and opposite sealing rods are fixedly connected by a first spring. The pressure plate is fixedly connected to the front end of the crossbar.

[0008] Furthermore, there are a total of six sealing rods, arranged in a row of three opposite each other.

[0009] Furthermore, the sealing and protection assembly also includes a gas generating tank, and the gas generating tank is fixedly connected to the side of the vent pipe.

[0010] Furthermore, the winding assembly also includes a motor, a receiving frame, and a receiving block. The motor output end is movably connected in the receiving frame, the motor output end is connected to the receiving frame, the receiving block is fixedly connected to the side of the mandrel, and the receiving block is movably connected in the receiving frame.

[0011] Furthermore, it also includes a quick-release assembly, which includes a first locking groove, a second locking groove, and a T-shaped locking rod. The first locking groove is opened through the upper and lower ends of the receiving frame, and the second locking groove is opened through the receiving block. The T-shaped locking rod is movably inserted between the first locking groove and the second locking groove.

[0012] Furthermore, the quick-assembly assembly also includes an L-shaped plate, a guide groove, and a T-shaped guide rod. The L-shaped plate is fixedly connected to the receiving frame, and a guide groove is formed through the L-shaped plate. The T-shaped guide rod is movably connected in the guide groove, and the bottom end of the T-shaped guide rod is fixedly connected to the top end of the T-shaped locking rod.

[0013] Furthermore, the quick-release assembly also includes a second spring, which is movably sleeved on the outer side of the T-shaped guide rod.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through the design of a sealing and protective component, allows the sealing rod to effectively seal the vent holes on the mandrel during the winding and curing process of the carbon fiber tube. During the winding stage, the elasticity of the first spring ensures that the sealing rod is tightly inserted into the vent hole, preventing the carbon fiber prepreg from contacting the vent hole and forming "dents," "bulges," or "marks," thus guaranteeing the surface smoothness of the inner wall of the tube and meeting the high-precision requirements of applications such as aerospace conduits and precision mechanical sleeves. Furthermore, with the cooperation of the first spring, the sealing rod can be quickly detached and inserted into the vent hole, thereby accelerating the vent hole closing and opening rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the internal sealing rod of the mandrel in this utility model;

[0019] Figure 3 This is a schematic diagram of the first spring connection of this utility model;

[0020] Figure 4 This is a schematic diagram of the second locking groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the first locking groove of this utility model;

[0022] Figure 6 This is a schematic diagram of the T-shaped locking rod connection of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101. Receiving frame; 102. Spindle; 103. Motor; 104. Receiving frame; 105. Receiving block;

[0025] 201. Moving plate; 202. Vent pipe; 203. Vent hole; 204. Sealing rod; 205. Crossbar; 206. First spring; 207. Pressure plate; 208. Gas generating tank;

[0026] 301. First locking groove; 302. Second locking groove; 303. T-shaped locking rod; 304. L-shaped plate; 305. Guide groove; 306. T-shaped guide rod; 307. Second spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-6 As shown, this utility model is an automated carbon fiber tube winding production equipment, comprising:

[0030] The cable winding assembly includes a support frame 101 and a spindle 102, with the spindle 102 movably connected to the side of the support frame 101.

[0031] The sealing and protection assembly includes a movable plate 201, a vent pipe 202, a vent hole 203, sealing rods 204, a crossbar 205, a first spring 206, and a pressure plate 207. The movable plate 201 is movably connected to the receiving frame 101, and the vent pipe 202 is fixedly connected to the movable plate 201. Ventilation holes 203 are opened through both sides of the mandrel 102, and sealing rods 204 are movably inserted into the vent holes 203. Adjacent sealing rods 204 are fixedly connected by the crossbar 205, and opposite sealing rods 204 are fixedly connected by the first spring 206. The front end of the crossbar 205 is fixedly connected to the pressure plate 207. There are a total of six sealing rods 204, arranged in a row of three opposite each other.

[0032] The mounting bracket 101 ensures the movable connection of the spindle 102; the movable plate 201 ensures the movable connection of the vent pipe 202; the vent hole 203 ensures the contact between the gas and the formed carbon fiber tube; the sealing rod 204 is used to seal the vent hole 203; the crossbar 205 ensures the fixed connection between the three sealing rods 204; the first spring 206 ensures the rapid disengagement and insertion of the sealing rod 204 from the vent hole 203; and the pressure plate 207 ensures the simultaneous pressing of multiple sealing rods 204.

[0033] The sealing and protection assembly also includes a gas generating tank 208, and a vent pipe 202 is fixedly connected to the side of the gas generating tank 208;

[0034] The gas generating tank 208, model VLG-4-1 / 8 4025, is used to generate the incoming gas.

[0035] The winding assembly also includes a motor 103, a receiving frame 104, and a receiving block 105. The output end of the motor 103 is movably connected in the receiving frame 101, the output end of the motor 103 is connected to the receiving frame 104, the side of the spindle 102 is fixedly connected to the receiving block 105, and the receiving block 105 is movably connected in the receiving frame 104.

[0036] The receiving frame 104 and the receiving block 105 work together to ensure that the motor 103 drives the spindle 102 to rotate.

[0037] Working principle: First, turn on the motor 103 to drive the mandrel 102 to rotate, thus winding the carbon fiber. After the carbon fiber is wound and tightened, press the pressure plates 207 at both ends. At this time, the first spring 206 is deformed by the compression of the sealing rods 204 at both ends, and the sealing rods 204 at both ends are disengaged from the vent hole 203. Then, rotate the pressure plate 207, which drives the sealing rods 204, the crossbar 205 and the first spring 206 to rotate until the sealing rods 204 rotate to the vertical direction of the mandrel 102. Then, move the moving plate 201 until the vent tube 202 is fully inserted into the mandrel. 102. Then, the gas generating tank 208 is opened, and the gas enters the mandrel 102 through the vent pipe 202. Then, it comes into contact with the formed carbon fiber tube through the vent hole 203 to form a gas film. Then, the formed carbon fiber tube is removed. When producing the next carbon fiber tube, the pressure plate 207 is rotated, which drives the sealing rod 204, the crossbar 205 and the first spring 206 to rotate. When the sealing rod 204 moves to the vent hole 203, the first spring 206 pushes the sealing rod 204 into the vent hole 203. The crossbar 205 is used to limit the movement range of the sealing rod 204.

[0038] Please see Figure 1-6 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The quick-release assembly includes a first locking groove 301, a second locking groove 302, and a T-shaped locking rod 303. The first locking groove 301 is opened through the upper and lower ends of the receiving frame 104, and the second locking groove 302 is opened through the receiving block 105. The T-shaped locking rod 303 is movably inserted between the first locking groove 301 and the second locking groove 302.

[0040] The first locking groove 301, the second locking groove 302, and the T-shaped locking rod 303 work together to ensure the smooth assembly and disassembly of the receiving frame 104 and the receiving block 105.

[0041] The quick-assembly assembly also includes an L-shaped plate 304, a guide groove 305, and a T-shaped guide rod 306. The L-shaped plate 304 is fixedly connected to the receiving frame 104. The guide groove 305 is opened through the L-shaped plate 304. The T-shaped guide rod 306 is movably connected in the guide groove 305. The bottom end of the T-shaped guide rod 306 is fixedly connected to the top end of the T-shaped locking rod 303.

[0042] The L-shaped plate 304 ensures the opening of the guide groove 305, the guide groove 305 ensures the movable connection of the T-shaped guide rod 306, and the T-shaped guide rod 306 ensures the up-and-down movement of the T-shaped locking rod 303.

[0043] The quick-release assembly also includes a second spring 307, with the second spring 307 movably sleeved on the outer side of the T-shaped guide rod 306;

[0044] The second spring 307 ensures the quick installation between the receiving block 105 and the receiving frame 104, thus ensuring the quick assembly and disassembly of the spindle 102.

[0045] Working principle: When the spindle 102 is damaged and needs to be replaced, simply pull the T-shaped guide rod 306 upward. This will cause the T-shaped locking rod 303 to disengage from the first locking groove 301 and the second locking groove 302. The second spring 307 will be deformed by the compression of the T-shaped locking rod 303 and the L-shaped plate 304. At this time, the spindle 102 can be pulled to disengage it. Then, take a new spindle 102 and insert its side receiving block 105 into the receiving frame 104. Then, release the T-shaped guide rod 306. The second spring 307 will deform in the opposite direction and insert the T-shaped locking rod 303 into the first locking groove 301 and the second locking groove 302, realizing the quick disassembly of the new spindle 102. Compared with the traditional bolt fixing of the spindle 102, this step can realize the quick disassembly and installation of the spindle 102, thus facilitating the quick replacement when the spindle 102 is damaged and reducing the downtime caused by the replacement of the spindle 102.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automated spooling production apparatus for carbon fiber pipe, characterized by, include: A winding assembly, the winding assembly including a support frame (101) and a spindle (102), the side of the support frame (101) being movably connected to the spindle (102). The sealing and protection assembly includes a movable plate (201), a vent pipe (202), a vent hole (203), a sealing rod (204), a crossbar (205), a first spring (206), and a pressure plate (207). The movable plate (201) is movably connected to the receiving frame (101). The vent pipe (202) is fixedly connected in the movable plate (201). Ventilation holes (203) are opened through both sides of the mandrel (102). The sealing rod (204) is movably inserted in the vent hole (203). The sealing rods (204) are fixedly connected to each other by the crossbar (205). The sealing rods (204) are fixedly connected to each other by the first spring (206). The pressure plate (207) is fixedly connected to the front end of the crossbar (205).

2. The automated carbon fiber tube winding production equipment according to claim 1, characterized in that: There are a total of six sealing rods (204), arranged in a row of three opposite each other.

3. The automated carbon fiber tube winding production equipment according to claim 1, characterized in that: The sealing and protection assembly also includes a gas generating tank (208), and the gas generating tank (208) is fixedly connected to the side of the vent pipe (202).

4. The automated carbon fiber tube winding production equipment according to claim 1, characterized in that: The winding assembly also includes a motor (103), a receiving frame (104), and a receiving block (105). The output end of the motor (103) is movably connected in the receiving frame (101), the output end of the motor (103) is connected to the receiving frame (104), the receiving block (105) is fixedly connected to the side of the spindle (102), and the receiving block (105) is movably connected in the receiving frame (104).

5. The automated carbon fiber tube winding production equipment according to claim 4, characterized in that: It also includes a quick-release assembly, which includes a first locking groove (301), a second locking groove (302), and a T-shaped locking rod (303). The first locking groove (301) is opened through the upper and lower ends of the receiving frame (104), and the second locking groove (302) is opened through the receiving block (105). The T-shaped locking rod (303) is movably inserted between the first locking groove (301) and the second locking groove (302).

6. The automated carbon fiber tube winding production equipment according to claim 5, characterized in that: The quick-assembly assembly also includes an L-shaped plate (304), a guide groove (305), and a T-shaped guide rod (306). The L-shaped plate (304) is fixedly connected to the receiving frame (104). The guide groove (305) is opened through the L-shaped plate (304). The T-shaped guide rod (306) is movably connected in the guide groove (305). The bottom end of the T-shaped guide rod (306) is fixedly connected to the top end of the T-shaped locking rod (303).

7. The automated carbon fiber tube winding production equipment according to claim 6, characterized in that: The quick-release assembly also includes a second spring (307), which is movably sleeved on the outside of the T-shaped guide rod (306).